tionbelong to these and solid-cut pinions, the only differencebeing that the round pins require wheel teeth of a differentshape from those suited to pinion leaves with radial sides.Both are derived from epicycloidal curves; the curve usedfor lantern pinions is derived from a circle of the same… … Fig. 73. Lantern pinion showing pitch circle.
Clocks and watches
Internet Archive · Boston Library Consortium · Public Domain Mark 1.0. Free to use for anything.
